上海斯米克銀釬料基本知識焊絲端頭與熔池接觸,并與火焰一起沿焊縫移動,焊炬不作橫向擺動,焊速要快,并盡量避免中斷。預(yù)熱與層間溫度:低溫環(huán)境下的預(yù)熱溫度應(yīng)稍高于常溫下的鈷基焊條焊接鋼結(jié)構(gòu)預(yù)熱溫度,加熱區(qū)域為構(gòu)件焊接區(qū)各方向大于或等于二倍鋼板厚度且不小于100毫米范圍內(nèi)的母材,焊接層間溫度不低于預(yù)熱溫度或標(biāo)準(zhǔn)(JGJ81-2002)規(guī)定的最低溫度20℃(兩者取高值)加大定位焊時的熱輸入:適當(dāng)加大定位焊的熱輸入,增大焊縫截面和長度,并采用與正式焊接相同的預(yù)熱條件,不在坡口以外的母材上打弧,熄弧時弧坑一定要填滿,可以有效減少由于定位焊接引起的收縮裂紋.焊絲生產(chǎn)效率高、成分調(diào)節(jié)靈活、電弧穩(wěn)定、焊接飛濺小和全位置焊接工藝性能良好,所以子啊焊材中的地位越來越重要,有逐漸取代手工電焊條和實芯焊絲的趨勢。安全衛(wèi)生制造/生產(chǎn)過程中如何不使碳化鉻耐磨板堆焊藥芯焊絲內(nèi)因管制不良而造成部分線材形成中空是耐磨板堆焊焊絲生產(chǎn)品質(zhì)的關(guān)鍵。
Category |
Trade-mark |
Specification |
Melting |
Chemical |
Application
|
Equivalent |
Copper 銅鋅 |
L103 |
Wire & rod |
885-888 |
Cu54 Zn Rem. |
Brazing of copper, bronze and steel, subjected to low
load. |
|
L104 |
Foil |
890-930 |
Cu57 Mn2 |
Brazing of
carbide cutting tool. |
|
|
Copper
銅磷 |
L201 |
Cast rod, wire
& rod, powder |
710-800 |
P7 Cu Rem. |
Brazing of
copper and copper alloys. |
BCuP-2 |
L204 |
Cast rod, wire |
640-815 |
P5 Ag15 |
Brazing of copper, copper alloys, silver and molybdenum
etc. |
BCuP-5 |
|
L205 |
Cast rod, wire
& rod, powder |
640-800 |
P6 Ag5 |
Brazing of
copper and copper alloys. |
BCuP-3 |
|
L207 |
Cast rod, wire & rod |
640-770 |
P7 Ag5 |
Brazing of copper and copper alloys. |
BCuP-7 |
|
L209 |
Cast rod, wire |
684-710 |
P7 Ag2 |
Brazing of
copper and copper alloys. |
BCuP-6 |
|
Silver
銀基 |
L302 |
Wire & rod |
745-775 |
Ag25 Cu40 |
Brazing of copper, copper alloys, steel and stainless
steel etc. |
|
L303 |
Wire & rod |
660-725 |
Ag45 Cu30 |
Brazing of copper, copper alloys, steel and stainless
steel etc. |
BAg-5 |
|
L303F |
Flux coated rod |
660-725 |
Ag45 Cu30 |
L303 coated
with flux, the same application as L303. |
BAg-5 |
|
L304 |
Foil |
690-775 |
Ag50 Cu34 |
Brazing of copper, copper alloys and steel etc. |
BAg-6 |
|
L308 |
Wire & rod |
779-780 |
Ag72 Cu Rem. |
Brazing of copper and nickel under vacuum or reducing
protective atmosphere. |
BAg-8 |
|
L312 |
Wire & rod |
595-605 |
Ag40.Cu.Zn.Cd |
Brazing of copper, copper alloys, steel and stainless
steel etc. |
|
|
L313 |
Wire & rod |
625-635 |
Ag50.Cu.Zn.Cd |
Brazing of copper, copper alloys, steel and stainless
steel etc. |
BAg-1a |
|
L321 |
Wire & rod 絲 |
615-650 |
Ag56.Cu.Zn.Sn |
Brazing of copper, copper alloys, steel and stainless
steel etc. |
BAg-7 |
|
L323 |
Wire & rod |
665-755 |
Ag30.Cu.Zn.Sn |
Brazing of copper, copper alloys, steel and stainless
steel etc. |
|
|
L325 |
Wire & rod |
645-685 |
Ag45.Cu.Zn.Sn |
Brazing of copper, copper alloys, steel and stainless
steel etc. |
BAg-36 |
|
L326 |
Wire & rod |
650-720 |
Ag38.Cu.Zn.Sn |
Brazing of copper, copper alloys, steel and stainless
steel etc. |
BAg-34 |
|
Aluminum base 鋁基 |
L400 |
Cast rod, wire & rod |
577-582 |
Si11.5 |
Brazing of aluminum and aluminum alloys. |
BAlSi-4 |
L401 |
Cast rod |
525-535 |
Si5 Cu28 |
Brazing of aluminum and aluminum alloys. |
|
|
Tin lead 錫鉛 |
L600 |
Wire & rod |
183-185 |
Sn60 Sb≤0.8 |
Soldering of fusible metals and heat-treated part. |
60Sn |
L601 |
Wire & rod |
183-227 |
Sn18 Sb2 |
Soldering of copper, copper alloys and galvanized iron
plain sheet. |
18Sn |
|
L602 |
Wire & rod |
183-256 |
Sn30 Sb2 |
Soldering of copper, brass, copper alloys and
galvanized iron plain sheet. |
30Sn |
|
L603 |
Wire & rod |
183-235 |
Sn40 Sb2 |
Soldering of copper, copper alloys, steel and zinc
parts. |
40Sn |
|
L604 |
Wire & rod |
183-222 |
Sn90 Sb≤0.15 |
Soldering of copper and steel for food and medicine
field. |
90Sn |
|
L605 |
Wire & rod |
232-240 |
Ag5 Sn95 |
Soldering of copper and steel for electrical and food
field. |
|
|
L608 |
Wire & rod |
295-305 |
Sn5.5 Ag2.5 |
Soldering of copper, copper alloys, steel and stainless
steel. |
|
|
Nickel base 鎳基 |
L702 |
Powder |
970-1000 |
Cr7 B3 Si4 |
Brazing of stainless steel under vacuum or protective
atmosphere. |
BNi-2
|